#include <iostream>
#include <string>
#include <cassert>
#include <vector>

using namespace std;

class Animal{
	private:
		string name;
	public:
		Animal(string n="Unnamed"): name(n){}
		virtual int legs()=0;
		virtual string species(){return "unknown";}
		virtual string getName(){return name;}
	protected:
		virtual string setName(string n){name=n;}
};
class Lion : public Animal {
	public:
		virtual int legs(){return 4;}
		virtual string species(){return "Lion";}
		Lion(string n):Animal(n){}
};
class Bird : public Animal {
	public:
		virtual int legs(){return 2;}
		virtual string species(){return "Bird";}
		Bird(string n):Animal(n){}
};
class Snake: public Animal{
	public:
		virtual int legs();
		virtual string species();
		Snake(string n):Animal(n){}
};
int Snake::legs(){return 0;}
string Snake::species(){return "Snake";}

int main()
{
	vector<Animal *> zoo;
	zoo.push_back(new Lion("Leo"));
	zoo.push_back( new Snake("Hissing Sid"));
	zoo.push_back( new Bird("Tweety Pie") );

	cout <<"----------------\n";
	for(int i=0; i < 3; i++)
	{
		cout << zoo[i]->species() << " ";
		cout << zoo[i]->getName() << ": ";
		cout << zoo[i]->legs() << endl;
	}
	cout <<"----------------\n";
	for(vector<Animal *>::iterator i=zoo.begin(); i != zoo.end(); i++)
	{
		cout << (*i)->species() << " ";
		cout << (*i)->getName() << ": ";
		cout << (*i)->legs() << endl;
	}
	cout <<"----------------\n";
	return 0;

}